<van-field 
is-link
readonly
clickable
v-model="model{{myItem.id}}" 
name="{{myItem.propValues.[1].value}}"
label="{{myItem.propValues.[1].value}}"
placeholder="{{myItem.propValues.[2].value}}" 
required="{{myItem.propValues.[3].value}}"
@click="showPicker{{myItem.id}} = true"/>
<van-popup v-model="showPicker{{myItem.id}}" position="bottom">
    <van-datetime-picker
      type="{{myItem.propValues.[4].value.chooseValue}}"
      :min-date="minDate{{myItem.id}}"
      :max-date="maxDate{{myItem.id}}"
      @confirm="onConfirm{{myItem.id}}"
      @cancel="showPicker{{myItem.id}} = false"
    />
  </van-popup>